ex01-15: rewrite temperature conversion program with function

1 files changed, 25 insertions, 0 deletions

diff --git a/ch01/ex15-temp.c b/ch01/ex15-temp.c
new file mode 100644
index 0000000..e38bdf4
--- /dev/null
+++ b/ch01/ex15-temp.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+int ftoc(int lower, int upper, int step);
+
+/* print Fahrenheit-Celsius table */
+int main()
+{
+	ftoc(0, 300, 20);
+	return 0;
+}
+
+/* ftoc:  print Farenheit-Celsius table */
+int ftoc(int lower, int upper, int step)
+{
+	float fahr, celsius;
+
+	fahr = lower;
+	while (fahr <= upper) {
+		celsius = (5.0/9.0) * (fahr-32.0);
+		printf("%3.0f %6.1f\n", fahr, celsius);
+		fahr = fahr + step;
+	}
+
+	return 0;
+}